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Skeleton files must not have extended ACLs.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22357 GEN001810 SV-45134r1_rule Medium
Description
If the skeleton files are not protected, unauthorized personnel could change user startup parameters and possibly jeopardize user files.
STIG Date
SUSE Linux Enterprise Server v11 for System z 2016-12-20

Details

Check Text ( C-42479r1_chk )
Check skeleton files for extended ACLs:
# ls -alL /etc/skel.
If the permissions include a '+', the file has an extended ACL. If the file has an extended ACL and it has not been documented with the IAO, this is a finding.
Fix Text (F-38530r1_fix)
Remove the extended ACL from the file.
# setfacl --remove-all [skeleton file with extended ACL]
or:
# ls -lL /etc/skel|grep "\+ "|awk ‘{print “/etc/skel/”$9}’|xargs setfacl --remove-all
will remove all ACLs from the files.